High-temperature corrosion resistance of Al-Re and Re coatings
文献类型：期刊论文
| 作者 | Z. M. Yu ; T. Narita |
| 刊名 | Oxidation of Metals
 |
| 出版日期 | 2001 |
| 卷号 | 56期号:5-6页码:467-493 |
| 关键词 | oxidation sulfidation AlRe and Re coatings CMSX-4 superalloy ni-cr alloys tribological properties sulfur pressures behavior vacuum chromium ti(y)n size pa |
| ISSN号 | 0030-770X |
| 中文摘要 | The oxidation behavior in air at 1473 K, and sulfidation behavior in a H2S-H-2 gas mixture with a sulfur partial pressure of 10(-2) Pa at 973 K of Al-Re coated CMSX-4 were studied. Investigation on the sulfidation behavior of the Re-coated CMSX-4 was carried out in a H2S-H-2 gas mixture with a sulfur partial pressure of 10(-2) Pa at 973 K The experimental results show that a Re-rich alloy layer was formed between an alpha -Al2O3 layer and the inner concentration bone of Ta and Ti for the CMSX-4 single crystal alloy with an AI-Re coating after oxidation. The Re-rich alloy layer containing Cr, W, Ni, Co, and Alo effectively inhibited the outward diffusion of alloying elements and the inward diffusion of AL The Al/Re-coated CMSX-4 single crystal alloy had excellent sulfidation resistance; the Re-rich alloy layer, containing W, Ti, Ta, and Mo, which formed during the sulfidation process and located between the alumina scale and the CMSX-4 base alloy, plays a role in inhibiting the outward diffusion of alloying elements. The sulfidation resistance of CMSX-4 single-crystal alloy is greatly improved by a Re coating on the CMSX-4 alloy surface; this is attributed to a Re-Cr-W alloy layer that retarded the outward diffusion of cations and the oxide layer containing Ta, Ti, and Al, which inhibited the inward penetration of sulfur. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36892]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Z. M. Yu,T. Narita. High-temperature corrosion resistance of Al-Re and Re coatings[J]. Oxidation of Metals,2001,56(5-6):467-493. |
| APA | Z. M. Yu,&T. Narita.(2001).High-temperature corrosion resistance of Al-Re and Re coatings.Oxidation of Metals,56(5-6),467-493. |
| MLA | Z. M. Yu,et al."High-temperature corrosion resistance of Al-Re and Re coatings".Oxidation of Metals 56.5-6(2001):467-493. |
入库方式： OAI收割
来源：金属研究所
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